package org.jaredjennings.idm;
/*
* Copyright (C) 2010, Jared Jennings <jaredljennings@gmail.com>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/**
 * A compilation of string utils that can be used in IDM Driver policies.
 * @author jjennings
 *
 */
public class StringUtils
{
	/**
	 * Returns the CN value of any DN.
	 * 
	 * The DN can be \tree\container\object
	 * or
	 * cn=user,ou=container,o=container
	 * or
	 * /user/container/tree
	 * @param dn
	 * @return
	 */
	public static String getCN(String dn) {
		String _split = "\\\\";
		
		if (dn.contains("/"))
			_split = "/";
		
		if (dn.contains(","))
			return comma(dn);
		
		String[] s = dn.split(_split);
		return s[s.length - 1];
	}

	private static String comma(String dn) {
		String[] _split = dn.split(",");
		return _split[0].replace("cn=", "");
	}
}
